Carbureter.



M. E. HUNTER.

OARBURETER.

APPLICATION LED AR. 9, 1909.

I 9&4,8;67., Patented Dec.28, 1909.

2 SHEETSSHEET 1.

gmihwooeo M. E. HUNTER.

GARBURETBR.

I I APPLICATION FILED APR. 9, 1909 94=,867. Patented Dec. 28, 1909.

2 SHEBTSSHBET 2.

Fig. 3.

vexplosive engines in which the air is com- 2 is'a detail sideelevation of the improved MURRAY E. HUNTER, OF

vrivoamvns. INDIANA.

CARIBURETER.

Specification of Letters Patent.

Patented Dec. 28, 1909.

Application filed April 9, 1909. Serial No. 488,853.

"lb all whom it may concern:

lie it known that I, MURRAY E. a (ltlZOlLOflllO lnitcd Yineennes. .in the county of Knox and'State of Indiana, have invented certain new and useful Improvements in Carburetersf of which the following is a specification, referonce being had therein to the accompanying drawing.

This invention relates to explosive engines, and has especially in view a fuel feeding and carbureting device therefor in which provision is made for preventing. the blowing back ofthe fueland also preventingthe possibility of base explosions.

The invention is especially adapted for use in connection with two cycle, two port HUNTER, States, residing at pressed in the base or crank case, and the invention contemplates the employment of automatically operating valves and valve operating mechanism whereby the gasoline is prevented from gaining access to said base or crank case, but is met by the rush of air therefrom and carried. with said air to the firing cylinder.

In carrying out the invention as generally stated above it will, of course, be readily understood that the sam'eis susceptible of changes in details and structural arrangements, but one preferred and practical embodiment thereof is shown in 'the accompanying drawings, wherein l igure l is a central vertical sectional View of a portion of the 'n'escnt invention fapplied thereto. F ig. fuel feedingand is an end View of tom plan vicwl end of -the device Fig.

carbureting device. Fig; 3 the same. Fig. 4 is a bot- Fig. 5 isja view of the opposite to that shown in (iis'a detail view of the air valve. W

Referring tosaid drawings by numerals, 1 designatcsthe enginceasing,.2 the portthcreo f,jand 3 apiston therein. Said engine casing 1 has an opening 4- formed in its side over which ail-outstanding casing 5 is titted and held in rigid 'ei'igagement with said on.-

gine easing by means of four bolts or screws -,of which two are shown in Fig. 1- the upper and lower bolts or screws 6. Said outstanding casing?) side 7 and an open bottom 8; An'air. valve controls the feeding o aintln ougl1 saidopeii bottom 8, siiidf iii o being formed of an casing 5.

.tion by means of the lock nut 16.

- 30 which acts as a an explosive engine showing "opening 29 has airfineliiiml bumlowerniostfposit ion intermediate disk 9 of leather or similar material, a lower flanged disk 10, and an upper metal disk 11 having a hinge car 12 which is in pivotal or hinge engagement with a pintle carried by the lower outer corner of said A screw bolt- 15 projects through said disks and holds the same in rigid rela- The lower end of said bolt- 15 carries a link 17 which is in engagement with a hook-shaped end 18 an arm 1-9 projecting from a coiled spring 20 connected to the bottom of The tension of said spring 20 retain the valve in a closed position. The upper portion of said casing 5 is provided witha fuel port 21 which communicates with a valve chamber 22 having a passage Way 23 which communicates with a fuel chamber 24. A needle valve 25 controls the passage way 23. The fuel chamber 24 is provided with an opening 26 in its bottom, the lower surface of which forms a valve seat fora valve 27, said valve being preferably a ball. A cage 29 provided with a bottom opening 29 surrounds the-bottom opening of the fuel chamber, 'said cage being held in a pendent said casingfi. is exerted to position from said fuel chamber. The upper portion of the fuel chamber carries a lug guide for a spiral spring 31 housed within chamber'24 and projecting through'the openin 26'aiid normally forcing sai'd'ball valve 27 from its seat and to apositiott where it. will close the opening 29 of the cage 25).

A rocking lever 32 is pivotally mounted adjacent to the upper portion of said casing 5- and has one arm 33'projecting under the cage 2.) and provided with a lug 33* which raises the ball valve 27 fromthe when said lever is rocked in one direction. Said lever is also provided with a downwardlyinclined arm :34 which projccts adjacent. to the inclined outer side of I the casing?) and has its end ljieveled as indicated at 35 and resting slightly above the topdisk of the air valve. A spring 56 has one end fastened to the arm 34, its other end bearing against the inclined side of said cash1g5 and exerting a tension "to force said arm 34 outwardly to cause thearm 33 to project its lug 33". through theopening 29 of the casing cage 29 to remove the ball therefrom and cause it? to seal the valve seat 26.

The operation of'the invention is as follows:--.\ ssli ni he piston to be at its ,"zind the/air valvo'closed, it will bo'sran t'ln1t '-,n"-t [upstroke otlhc air valve and permit air casing and pass. down As the air valve opens, rocked and cause the arm fseat itself at 29*- allowing the cag'e29 sndhold it in suspense until the "piston has reached the limit of the upstroke. on the downstroke of the piston, the air valve will immediately'close; and the rockpiston a viicuum willf lie createdin the crank case and also 'thatrthe suction will raise the to pass through the to the crank case.

33 to release the ball 27 whichassisted by, the'spring 31 will the fuel' to enter ing lever will engage the ball valve; project its lug 33* through the bottom of cage lift valve-27 against the tension of spring 31 and causesaid valve to close the outlet from the fuel chamber and at the same time permit thefuel in the cage to flow throu h the bottom opening 29": Said downstror e of thepiston also compresses the air in the crank case and when the limit of such stroke has been reached, the port 2 will open so that the compressed air will rush upwardly to ward the cylinder and meet the fuel which has flowed from the cage and carry it along with such force as to thorou hly vaporize the same by the time the cylinder is reached. This operation, isof course, continued with the strokes of the piston.

It will be seen from the foregoing that as the ball valve 271s located on the outside of that as the gasolene or otherthe fuel chamber it from the crank case And it will also be seen blowing the fuel back. from the foregoing uel never reaches the crank case, all danger of base of the piston and provided with two arms one of which 18' held in the path of movement of said air and projecting through explosions are obviated.

What I claim as my invention is 1. A device of the character described comprising an engine casing, amantomatically operating air valve therefor, a rocking lever having movement of said valve, a fuel chamber in said casing, a cage carried by said chamber, said chamber and cage being 21A device of the character described comprising an engine provided with an open;

ing, a casing surrounding said opening an provided with an open bottom, a springheld valve for closing said opening in the bottom of thecasing and adapted to be drawn to an open position a lever mounted in said casing valve, a fuel chamber carriedv by said casing engine, a cage depending rrom saie fuel chamber, a valve in said cage and controlleverarm 34 will be prevents the pressure an'arm held in the path of,

provided with. discharge outlets, a valve in said cage and comprising a casing,

by the upstroke the opening of the V fuel chamber and ling the discharge from said said valve being held to a clutmbcr closing position by one of the arms ofisaid rocking lever when the air valve is closed, and :1-

spring for returning said ball \to' the cage when the pressure of the-said" arm is re moved therefrom. a A

3. A- device of the character described comprising an air controlling valve operated by an upstroke of the piston to uilmit air, a fuel chamber provided with an cxtiarior valve seat, a cage surrounding said valve seat, a valve in said cage, and a rocking lemopul' ated by said air valve to hold thd valve to its seatvwhen air is being con'iprcssod in the cfank case. I i

,. 4. A. device of the character described comprising an engine casing, 21 pistonlhercin, an outstanding casing carried by said engine casing, an air valve carried by the outstanding casing and adapted to be opcnedby the upstrokeof said piston, a fuel chamber projecting into said engine casing and provided with a bottom opening and surrounding valve seat, a spring carried by said fuel chamber and projecting through said opening, a page depending from said fuel chamber and surrounding the bottom opening therein, a ball valve 'seated in said cagetaud normally held away from the opening in the fuel chamber by said spring, and a rocking lever-operated by the opening movement of said air valve to cause said ball valvexto open the outlet from said fuel chamber.

5. A device of the character described comprising an engine casing, an air valve therefor, a fuel chamber in said casing and provided with a discharge outlet,"a cage depending therefrom and. surrounding said outlet, said cage also being provided with an outlet, a valve in said cage and controlling said outlets, means for normally holding said valve away from the outlet of the fuel chamber and closing the outlet of thcageto permit fuel to flow'into the cage,

and means operated by the opening of the incl; chamber;

air valve 'to' reverse the position of said I cage valve. I 6. A device of the characterdescribed a. fuel chamber therein provided with a bottom outlet; alcage depending :from said fuel chamber and surrounding said outlet, a valve in'said cage and normally sealing the discharge outlet therefrom, and means forcausing'said valve to seal the outlet from the fuel chambr while air-is being compressed in the base of said casing. i

7; A device of the character described comprising a casing, and provided with a discharge outlet, I a cage dependin from said fuel chamber and provided wit an opening in its bottom, a valve in said cage, a spring-carried by said normally holding said a 'fuel chamber therein prising an engine eese":

valve in position to close the opening of the cage, an air valve carried by said casing, and a rocking lever operated when said air valve is admitting air to cause the valve to open the outlet from the fuel chai'nber.

' 8. Adevice of the character described comvalve in said casing and operated by an upstroke of a piston to admit air thereto, a fuel chamber, a cage bt and in which the fuel is held in suspension, a valve in said cage, and means operated by the air valve and controlling the outlet therefrom and the outlet of the fuel chamber for controllin; said cage valve.

i device oltheeharacter described comprising an engine easing. air feeding means therein, a fuel chamber in said casing, a cage receiving the fuel holding" the same in suspension durin; the

i cycle of the engine, and a valve controlling the discharge from said chamber and cage, said valve bein g operated by the air feeding llN'tlllS.

It). A' device of the character described comprising an engine easing, an outstanding casing carried thereby and connnunicating therewith, an' air valve in said outstanding easii'i'g, a fuel chamber carried by the ontcasing, an air controlling,

carried by said 'chamfrom said ehan'iber and discharge outlets,.a valve In said cage for l l l l controlling said outlets means for normally holding said valve in position to-close the outlet of said cage, and means said air valve to-eause said cage valve to open the cage outlet and'close the fuel outlet.

11. In a device of the character described the combination with the engine casing and air valve, of-a fuel chamber projecting into said casing and provided with a discharge outlet, a cage depending from said-chain her and receivingfuel therefrom and holding the same in suspension during one cycle of the engine, a valve in said cage, and means operated by saidaitgvalve for causing said cage valve to close the fuel chamber outlet. when the air valve closed and clese the cage outlet when the air valve is open.

In testimony whereof): hereunto affix my signature in presence of two Witnesses.

IMTURRAY E. HUNTER.

- Witnesses:

MABEL Tamera, 1a. 3. HORAN,

operated by 

